Shut off the water, electricity and gas.
They won't be able to recharge their computers and smart phones. They will get on each other's nerves when they start tripping over each other in the dark. Then watch them stick their asses out the window to shit when the toilets back up.
When they run out of toilet paper they will have to use their banners and head wraps to wipe their filthy asses. Just think of the women experiencing their periods without tampons.
Place loudspeakers outside the building playing the Deguello and Hava Nagila. Have I left out anything?
